Finding the Third Proportional to 131,508 and 188,042.63

Step by Step Solution

1. Step 1: Write the proportion equation
   131,508 : 188,042.63 = 188,042.63 : x
2. Step 2: Convert to fraction form
   131,508/188,042.63 = 188,042.63/x
3. Step 3: Cross multiply
   131,508x = 188,042.63 × 188,042.63
4. Step 4: Simplify right side
   131,508x = 35,360,028,816.89
5. Step 5: Solve for x
   x = 35,360,028,816.89/131,508
6. Step 6: Final answer
   x = 268,881.20